High efficiency encoder and video information recording/reproducing apparatus
March 2, 2026. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDigital video signal recording system and reproducing apparatus Inter-frame coding apparatus for video signal Movement compensation predictive encoder for a moving picture signal with a reduced amount of information Hybrid coding process by transformation for the transmission of picture signals Moving image signal coding system Adaptive transform encoder for digital image signal in recording/reproducing apparatus Moving-image signal encoding apparatus with variably selected quanitization step size Apparatus for inter-frame predictive encoding of video signal Apparatus and method for adaptively compressing successive blocks of digital video Video signal transmitting system InventorsAssigneeApplicationNo. 11276501 filed on 03/02/2006US Classes:375/240.08, Feature based348/401.1, With prior difference coding375/240.12, Predictive348/384.1, BANDWIDTH REDUCTION SYSTEM375/240.15, Bidirectional375/240.13, Intra/inter selection341/67, To or from variable length codes386/46, PROCESSING OF TELEVISION SIGNAL FOR DYNAMIC RECORDING OR REPRODUCING386/68Fast, slow, or stop reproducingExaminersPrimary: Diep, NhonAttorney, Agent or FirmForeign Patent References
International ClassesH04N 7/12H04N 11/02 H04N 11/04 H04B 1/66 AbstractIn a high-efficiency encoder which performs motion-compensation prediction, an intra-field is set every n fields. The presence of a scene change is detected. When a scene change occurs, a reference picture of motion-compensation prediction is switched, or the field immediately after the scene change is set as an intra-field. ClaimsWhat is claimed is: 1. An apparatus for transforming a video signal, the apparatus comprising: an intra-mode transforming unit, said intra-mode transforming unit performing a block-basedintra-mode transformation of at least a first portion of the video signal; and a predictive-mode transforming unit, said predictive-mode transforming unit performing a block-based predictive-mode transformation of at least a second portion of the videosignal, said intra-mode transforming unit performing the intra-mode transformation on the basis of fields of the at least first portion of the video signal in a field-based video signal, said intra-mode transforming unit performing the intra-modetransformation on the basis of frames of the at least first portion of the video signal in a frame-based video signal, said predictive-mode transforming unit performing the predictive-mode transformation on the basis of fields of at least the secondportion of the video signal in the field-based video signal, and said predictive-mode transforming unit performing the predictive-mode transformation on the basis of frames of at least the second portion of the video signal in the frame-based videosignal, wherein an intra-block, coded using intra-mode transformation, may be included within a predictive field or predictive frame, and said video signal contains an intra-mode signal for said intra-block, said intra-mode signal being generated foreach intra-block within said predictive-fields or a predictive-frame that has been transformed by using the intra-mode transformation. 2. The apparatus according to claim 1, said intra-mode transforming unit performing an encoding transformation of the at least first portion of the video signal, and said predictive-mode transforming unit performing an encoding transformationof the at least second portion of the video signal. 3. The apparatus according to claim 1, said intra-mode transforming unit performing a decoding transformation of the at least first portion of the video signal, and said predictive-mode transforming unit performing a decoding transformation ofthe at least second portion of the video signal. 4. The apparatus according to claim 1 further comprising a quantizing unit for quantizing said intra-mode signal, wherein said quantized signal is output to a transmission path with said block transformed using said encoding transformation bysaid intra-mode transforming unit. 5. The apparatus according to claim 1 further comprising a scene cut detecting unit for detecting a frame or a field corresponding to a scene cut included in said video signal, wherein said intra-mode transforming unit transforms said field orsaid frame using said intra-mode transformation, when scene cut detecting unit detects said scene cut. Other References
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